Backflow Prevention In Wollongong

Protect Your Water Supply and Stay Council-Compliant

Backflow occurs when contaminated water flows backward into your clean water supply, potentially introducing pollutants, chemicals, or bacteria into the system. It’s a serious health and safety risk, which is why NSW law requires certain properties and businesses to have approved backflow prevention devices installed, tested, and certified by a licensed plumber.

CS Plumbing Services is fully licensed to install, test, and maintain backflow prevention devices across Wollongong and the Illawarra. We work with homeowners, businesses, and strata managers to ensure compliance with NSW Health and local council water regulations.

What Is Backflow Prevention?

Backflow prevention stops contaminated water from entering your main water supply by using a mechanical device that only allows flow in one direction. These devices protect drinking water from contamination caused by pressure fluctuations or cross-connections, such as hoses, irrigation systems, or industrial equipment connected to the same line.

In NSW, all medium- and high-risk properties must have approved backflow devices installed and tested annually by a licensed plumber.

Our Backflow Services

• Backflow Device Installation: We install new backflow prevention valves suited to your property type and water supply classification. Devices are selected based on hazard level and installed to NSW plumbing standards.
• Annual Testing and Certification: Councils require yearly testing of all registered backflow devices. We conduct these tests using calibrated equipment and submit official results to your local council on your behalf.
• Maintenance and Repairs: If a backflow valve fails testing, we carry out all necessary repairs or replacements quickly to restore compliance and ensure safe operation.
• Risk Assessment and Site Audits: We assess your plumbing layout to identify potential cross-connection risks and recommend appropriate device types or upgrades to meet regulations.
• Record Keeping and Reporting: Our team maintains accurate service records and testing reports for council and insurance purposes — ensuring your compliance is always up to date.

We follow all NSW gas fitting requirements and provide a Certificate of Compliance for Gas Work on completion of each job, as required under the Gas and Electricity (Consumer Safety) Act 2017.

Who Needs Backflow Prevention?

You may need a backflow prevention device if your property:

• Has a commercial kitchen, café, or food outlet
• Includes irrigation, fire sprinklers, or large water storage systems
• Operates industrial or chemical processes
• Is a medical, dental, or laboratory facility
• Shares water supply with multiple tenancies (such as strata or commercial buildings)

If you’re unsure, we can check your local council requirements and advise whether your property is classified as low, medium, or high risk under NSW guidelines.

Book a Backflow Prevention Test or Installation

Protecting your water supply and staying compliant with NSW Health and council regulations is essential. Whether you need a new device installed, annual testing, or a full site audit, our licensed plumbers provide reliable, fully certified service.

Contact CS Plumbing Services today to book in your backflow services anywhere in Wollongong or the Illawarra.